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HMS Chester (1915)
HMS ''Chester'' was a light cruiser of the Royal Navy, and one of two ships forming the ''Birkenhead'' subtype. Along with her sister ship, , she was originally ordered for the Greek Navy in 1914 and was to be named ''Lambros Katsonis''. The order was placed with Cammell Laird and production continued for the Greek account after the outbreak of the First World War in August 1914. In 1915, however, the two cruisers were purchased by the British government.
==Design and description==
Based on the ''Birmingham'' sub-class of the ''Town''s, the two Greek ships primarily differed from their British half-sisters in their armament. The Greeks specified that they would use the new BL 5.5-inch (140 mm) Mk I gun built by the Coventry Ordnance Works. This weapon was significantly lighter than the standard 6-inch (152 mm) gun, which allowed the ships to mount ten guns, rather than the nine of the ''Birmingham''s, and fired an shell rather than the shell of the 6-inch weapon. It therefore had a higher rate of fire with little loss in hitting power.〔Gardiner & Gray, p. 58〕 The Greeks also specified a secondary armament of two 12-pounder anti-aircraft guns, but these were still under development in 1915 and a pair of 3-pounder guns on high-angle mounts were substituted instead. In addition, ''Chester'' had a requirement for and only used oil-fired boilers to save weight and increase her power to meet the specification.〔Lyon, Part 2, pp. 57, 59〕
The ship was long overall, with a beam of and a draught of .〔Friedman 2010, p. 384〕 Displacement was normal and at full load. Twelve Yarrow boilers fed ''Chester''s Parsons steam turbines, driving four propeller shafts, that were rated at for her intended speed of 26.5 knots. She carried tons of fuel oil.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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